Remove Bionic from future releases (Garden+) (#229)

Signed-off-by: Louise Poubel <[email protected]>

.github/workflows/ci.yml

@@ -3,17 +3,6 @@ name: Ubuntu CI
 on: [push, pull_request]
 
 jobs:
-  bionic-ci:
-    runs-on: ubuntu-latest
-    name: Ubuntu Bionic CI
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-      - name: Compile and test
-        id: ci
-        uses: ignition-tooling/action-ignition-ci@bionic
-        with:
-          codecov-enabled: true
   focal-ci:
     runs-on: ubuntu-latest
     name: Ubuntu Focal CI
@@ -23,3 +12,5 @@ jobs:
       - name: Compile and test
         id: ci
         uses: ignition-tooling/action-ignition-ci@focal
+        with:
+          codecov-enabled: true

README.md

@@ -10,7 +10,7 @@
 Build | Status
 -- | --
 Test coverage | [![codecov](https://codecov.io/gh/ignitionrobotics/ign-msgs/branch/main/graph/badge.svg)](https://codecov.io/gh/ignitionrobotics/ign-msgs)
-Ubuntu Bionic | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=ignition_msgs-ci-main-bionic-amd64)](https://build.osrfoundation.org/job/ignition_msgs-ci-main-bionic-amd64)
+Ubuntu Focal | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=ignition_msgs-ci-main-focal-amd64)](https://build.osrfoundation.org/job/ignition_msgs-ci-main-focal-amd64)
 Homebrew      | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=ignition_msgs-ci-main-homebrew-amd64)](https://build.osrfoundation.org/job/ignition_msgs-ci-main-homebrew-amd64)
 Windows       | [![Build Status](https://build.osrfoundation.org/buildStatus/icon?job=ign_msgs-ci-win)](https://build.osrfoundation.org/job/ign_msgs-ci-win)